突出显示java中的单词

我希望在特定时间突出显示单词（就像卡拉OK应用程序一样）。 每个单词将有一个特定的时间突出显示。我能够采取时间，但没有在哪里。如何突出一个单词持续时间。搜索stackoverflow和谷歌，但死胡同。 我可以帮助java脚本或HTML？ 请帮帮我。 这是一段代码我如何采取时间：

millis mil=new millis(); if(true){ if(flag==1) flag=0; else flag=1; if(flag==0) value=mil.done(flag,start); start=value; if(flag==1) value=mil.done(flag,start);//function to calculate duration }System.out.println("val:"+(value-3086610)); // System.out.println("gyjghjghjghj"+(System.nanoTime()-start2)); String s = textArea.getText(); char[] words=s.toCharArray(); for(i=last;words[i]!=' '&&words[i]!='\n';i++,last=i) { } try {//System.out.println(acount); hilit.addHighlight(first, last, painter); last++; first=last; } catch (BadLocationException ex) { Logger.getLogger(newh.class.getName()).log(Level.SEVERE, null, ex); } 

这就是我能够为每个单词计时的方法。
谢谢。

Answer 1

+1给StanislavL回答。

一个简短的例子希望它有所帮助。

在这里，我创造了我的话语和时间：

 int[] timings = {2000, 1000, 4000}; String[] words = new String[]{"Hello", "java", "whoooooh"}; 

单击开始按钮后：

2000毫秒后：

1000后：

4000毫秒后：

 import java.awt.BorderLayout; import java.awt.Color; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import javax.swing.AbstractAction; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JOptionPane; import javax.swing.JTextPane; import javax.swing.SwingUtilities; import javax.swing.Timer; import javax.swing.text.BadLocationException; import javax.swing.text.DefaultHighlighter; public class KaraokeTest { private int[] timings = {2000, 1000, 4000}; private String[] words = new String[]{"Hello", "java", "whoooooh"}; private DefaultHighlighter.DefaultHighlightPainter highlightPainter = new DefaultHighlighter.DefaultHighlightPainter(Color.GREEN); private int count = 0; private boolean fisrTime = true; private JFrame frame; private JTextPane jtp; JButton startButton; public KaraokeTest() { initComponents(); } private void initComponents() { frame = new JFrame(); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); frame.setResizable(false); jtp = new JTextPane(); for (String s : words) { String tmp = jtp.getText(); if (tmp.equals("")) { jtp.setText(s); } else { jtp.setText(tmp + " " + s); } } startButton = new JButton("Start"); startButton.addActionListener(new ActionListener() { @Override public void actionPerformed(ActionEvent ae) { startKaraoke(); } }); frame.add(jtp, BorderLayout.CENTER); frame.add(startButton, BorderLayout.SOUTH); frame.pack(); frame.setVisible(true); } private void startKaraoke() { if (fisrTime) { startButton.setEnabled(false); fisrTime = false; } new Thread(new Runnable() { @Override public void run() { Timer t = createAndStartTimer(timings[count], count); while (t.isRunning()) {//wait for timer to be done try { Thread.sleep(1); } catch (InterruptedException ex) { ex.printStackTrace(); } } SwingUtilities.invokeLater(new Runnable() { @Override public void run() { count++; if (count == timings.length) { JOptionPane.showMessageDialog(frame, "Done"); startButton.setEnabled(true); count = 0; } else { startKaraoke(); } } }); } }).start(); } private Timer createAndStartTimer(int delay, final int count) { SwingUtilities.invokeLater(new Runnable() { @Override public void run() { int sp = 0; for (int i = 0; i < count; i++) { sp += words[i].length() + 1; } try { jtp.getHighlighter().addHighlight(sp, sp + words[count].length(), highlightPainter); } catch (BadLocationException ex) { ex.printStackTrace(); } } }); Timer t = new Timer(delay, new AbstractAction() { @Override public void actionPerformed(ActionEvent ae) { jtp.getHighlighter().removeAllHighlights(); } }); t.setRepeats(false); t.start(); return t; } public static void main(String[] args) { SwingUtilities.invokeLater(new Runnable() { @Override public void run() { new KaraokeTest(); } }); } } 

更新：

修复了上述代码，以便能够在指定的时间内突出显示句子中的单个字符：

 import java.awt.BorderLayout; import java.awt.Color; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import javax.swing.AbstractAction; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JOptionPane; import javax.swing.JTextPane; import javax.swing.SwingUtilities; import javax.swing.Timer; import javax.swing.text.BadLocationException; import javax.swing.text.DefaultHighlighter; public class KaraokeTest { private int[] timings = {2000, 1000, 4000, 2000, 3000};//char timings private String[] words = {"H", "e", "l", "l", "o"};//each indiviaul word private String sentence = "Hello";//entire string for writing to JSCrollPane private DefaultHighlighter.DefaultHighlightPainter highlightPainter = new DefaultHighlighter.DefaultHighlightPainter(Color.GREEN); private int count = 0; private boolean fisrTime = true; private JFrame frame; private JTextPane jtp; JButton startButton; public KaraokeTest() { initComponents(); } private void initComponents() { frame = new JFrame(); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); frame.setResizable(false); jtp = new JTextPane(); jtp.setText(sentence); startButton = new JButton("Start"); startButton.addActionListener(new ActionListener() { @Override public void actionPerformed(ActionEvent ae) { startKaraoke(); } }); frame.add(jtp, BorderLayout.CENTER); frame.add(startButton, BorderLayout.SOUTH); frame.pack(); frame.setVisible(true); } private void startKaraoke() { if (fisrTime) { startButton.setEnabled(false); fisrTime = false; } new Thread(new Runnable() { @Override public void run() { Timer t = createAndStartTimer(timings[count], count); while (t.isRunning()) {//wait for timer to be done try { Thread.sleep(1); } catch (InterruptedException ex) { ex.printStackTrace(); } } SwingUtilities.invokeLater(new Runnable() { @Override public void run() { count++; if (count == timings.length) { JOptionPane.showMessageDialog(frame, "Done"); startButton.setEnabled(true); count = 0; fisrTime = true; } else { startKaraoke(); } } }); } }).start(); } private Timer createAndStartTimer(int delay, final int count) { SwingUtilities.invokeLater(new Runnable() { @Override public void run() { int sp = 0; for (int i = 0; i < count; i++) { sp += words[i].length(); } try { jtp.getHighlighter().addHighlight(sp, sp + words[count].length(), highlightPainter); } catch (BadLocationException ex) { ex.printStackTrace(); } } }); Timer t = new Timer(delay, new AbstractAction() { @Override public void actionPerformed(ActionEvent ae) { jtp.getHighlighter().removeAllHighlights(); } }); t.setRepeats(false); t.start(); return t; } public static void main(String[] args) { SwingUtilities.invokeLater(new Runnable() { @Override public void run() { new KaraokeTest(); } }); } } 

Answer 2

您可以从http://java-sl.com/blink.html链接开始

添加高亮显示到JTextArea并让它们闪烁一段时间。